JPS6218850Y2 - - Google Patents

Description

[Detailed description of the invention] This is an invention that prevents too much ignition fuel from being supplied to the burner and overflowing when the burner's ignition heater is energized to ignite the burner.

To explain this invention based on the embodiment shown in the drawings, reference numeral 1 refers to a preheating chamber at the bottom of the burner B, and the upper surface of the bottom plate 2 is covered with non-combustible fibers 3 such as asbestos or glass fibers, and adjacent to this is a preheating chamber for ignition. Heater H
Install. 4 is an air port communicating with the preheating chamber.

Then, a fuel supply cylinder 5 is installed through the bottom plate 2, and a saucer 8 with a large number of through holes 7 is connected directly below the oil spout 6 opened at the top of the fuel supply pipe 5, and the saucer 8 is placed above the preheating chamber 1. I look into it.

A large number of ribs are formed radially on the combustion body 9 connected to the upper end of the supply cylinder 5.

10 is a primary combustion chamber, and above it is a secondary combustion chamber 1.
One of the left and right side walls of 1 is opened to provide a spout 12 that expands to a wider end, and a large number of through holes 13 are bored in the other side wall.

Next, one end of the ignition fuel pipe 14 is connected to the oil filler port 15 bored in the bottom plate 2, and the other end is connected to the ignition fuel valve V.
1 to the pump P. The oil filler port 16 at the lower end of the supply tube 5 is connected to the pump P by a fuel pipe 17 via the main fuel valve V2. Valve V1, V2
It is best to use a solenoid valve that opens and closes electrically.

18 is a filter, and 19 is a tank.

Then, the contact point of a relay R connected to the push button switch S is connected to the power supply circuit of the heater H, and the contact point of a timer T connected in parallel to this relay R is connected to the ignition fuel valve V1. Timer T is a time limit circuit that closes its contacts for a certain period of time t after energization.

E indicates a power source. The main fuel valve V2 is connected to a power source E via a switch (not shown).

However, in this invention, when the switch S is pressed to close the contact of the relay R, the ignition heater H generates heat.

At the same time, the timer T is energized, its contacts are closed, and the ignition fuel valve V1 is switched to a conductive state, and fuel such as kerosene in the tank 19 is diffused into the non-flammable fibers 3 and ignited by the heater H, and the preheating chamber 1 burns.

When the switch S is kept pressed in this manner and the preheating chamber 1 is burned for a certain period of time, for example, one minute, and the saucer 8 is heated, the switch S is turned off and the ignition fuel valve V1 is switched to the cutoff state. Then, when the main fuel valve V2 is opened, the fuel in the tank 19 is discharged from the supply tube 5 into the heated saucer 8 and ignites, burning in the primary combustion chamber 10 while heating the combustion body 9, and then undergoing secondary combustion. Room 1
Complete combustion occurs at step 1, and the highly hot air is ejected from the ejection port 12 into, for example, a hot air chamber of a grain dryer.

However, the heater H may be disconnected or the heater H may be disconnected.
is too far away from the non-combustible fibers 3 and the fuel diffused in the non-combustible fibers 3 cannot be ignited even if the switch S is pressed. When time t has elapsed, timer T operates and its contacts open. As a result, the ignition fuel valve V1 is switched to the cutoff state, and the supply of fuel to the preheating chamber 1 is stopped.

Also, after preheating, without turning off the switch S, the main heating valve V2
Even when the burner B is opened and the burner B is combusted, the timer T automatically switches the ignition fuel valve V1 to the shut-off state when time t has elapsed since the switch S was started being pressed. However, in this invention, the main fuel valve V2 has nothing to do with the operation of the timer T, so even if the ignition fuel valve V1 automatically closes, the main fuel valve V2 remains open and the burner B burns normally. Continue to do so.

In the embodiment shown in the drawings, a preheating chamber 1 is provided at the bottom of the burner, and after preheating a saucer 8, fuel is discharged onto the saucer and burned. Needless to say, this idea can be implemented in an injection type burner without a preheating chamber, in which the mixed gas is mixed with outside air and ignited directly by a heater for combustion.

In short, in this design, burner B
A timer T is connected to the switch S of the ignition heater H, which closes the contact point for a certain period of time regardless of the presence or absence of ignition, and the contact point is connected to the ignition fuel valve V1 provided on the ignition fuel pipe 14 leading to the burner B. hand,
Even if you keep pressing the switch S without noticing the ignition failure of burner B, the timer T will close the ignition fuel valve V1 and stop the fuel supply, so the fuel will flow to burner B.
When a certain period of time has elapsed since the switch S was pressed, regardless of whether the ignition was successful or not, regardless of whether the ignition was successful or not, regardless of whether the ignition was successful or not,
Timer T always automatically closes ignition fuel valve V1, so if switch S is kept pressed even though burner B is burning, fuel will flow out from ignition fuel valve V1, producing a large amount of smoke. In addition, there is no risk of the burner being abnormally strong and over-combusting, and fuel is not wasted, and the timer T
Since the burner continues to burn even when the ignition fuel valve V1 is closed, the burner can be reliably burned even if the switch S is pressed for a long time.

It should be noted that even if the contacts of the timer T are connected to the pump P instead of the ignition fuel valve V1 of the embodiment shown in the drawings, exactly the same effect will be produced.

[Brief explanation of the drawing]

FIG. 1 is an overall cross-sectional view of a burner implementing this invention, FIG. 2 is a wiring diagram thereof, and FIG. 3 is an explanatory diagram of the operation of this invention. B is the burner, 1 is the preheating chamber, H is the ignition heater,
S is a switch, T is a timer, 14 is an ignition fuel pipe, and V1 is an ignition fuel valve.

Claims (1)

[Scope of utility model registration request] Attach an ignition heater to the burner, connect a relay contact to this heater, and connect a timer to the switch that activates this relay, which closes the contact for a certain period of time regardless of whether the ignition is ignited or not.
A burner ignition device comprises an ignition fuel valve interposed in an ignition fuel pipe leading to the burner and connected to a contact point of the timer so that the ignition fuel valve is closed after a certain period of time.